Heat margarine in large skillet, add onion, sprinkle with sugar. Cook over low heat until onions are golden and tender, about 20 minutes. Cook green beans in boiling water for 10-13 minutes or until tender. Drain and place in bowl. Spray hot beans with vegetable oil spray and sprinkle with Mrs. Dash® Lemon Pepper Seasoning Blend, toss. Garnish with caramelized onions.